name: Unified Build and Deploy

on:
  push:
    branches:
      - '**'
    tags:
      - 'v*'
  pull_request:
    branches:
      - '**'
  workflow_dispatch:
    inputs:
      force_release:
        description: "Force release creation"
        required: false
        default: "false"
        type: choice
        options:
          - true
          - false
      components:
        description: "Components to build (comma separated)"
        required: false
        default: "webclient,desktop,android,backend"
        type: string

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  # Initialize and update submodules
  init-submodules:
    runs-on: ubuntu-latest
    name: Initialize Submodules
    outputs:
      webclient-changed: ${{ steps.changes.outputs.webclient }}
      desktop-changed: ${{ steps.changes.outputs.desktop }}
      android-changed: ${{ steps.changes.outputs.android }}
      backend-changed: ${{ steps.changes.outputs.backend }}
      should-build-webclient: ${{ steps.decision.outputs.webclient }}
      should-build-desktop: ${{ steps.decision.outputs.desktop }}
      should-build-android: ${{ steps.decision.outputs.android }}
      should-build-backend: ${{ steps.decision.outputs.backend }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: recursive

      - name: Detect changes
        id: changes
        run: |
          # Get changed files
          if [ ${{ github.event_name }} == 'push' ]; then
            if [ ${{ github.ref }} == 'refs/heads/main' ] || [ ${{ github.ref }} == 'refs/heads/master' ]; then
              BASE="HEAD~1"
            else
              BASE="origin/main"
            fi
          elif [ ${{ github.event_name }} == 'pull_request' ]; then
            BASE="${{ github.event.pull_request.base.sha }}"
          else
            BASE="HEAD~1"
          fi
          
          echo "Checking changes between $BASE and HEAD"
          
          # Check submodule changes
          git diff --name-only $BASE HEAD | grep -E "^swingmusic-webclient/" > /dev/null && echo "webclient=true" >> $GITHUB_OUTPUT || echo "webclient=false" >> $GITHUB_OUTPUT
          git diff --name-only $BASE HEAD | grep -E "^swingmusic-desktop/" > /dev/null && echo "desktop=true" >> $GITHUB_OUTPUT || echo "desktop=false" >> $GITHUB_OUTPUT
          git diff --name-only $BASE HEAD | grep -E "^swingmusic-android/" > /dev/null && echo "android=true" >> $GITHUB_OUTPUT || echo "android=false" >> $GITHUB_OUTPUT
          git diff --name-only $BASE HEAD | grep -E "^src/" > /dev/null && echo "backend=true" >> $GITHUB_OUTPUT || echo "backend=false" >> $GITHUB_OUTPUT
          
          # Also check if submodules themselves changed
          git submodule status --recursive

      - name: Decide what to build
        id: decision
        run: |
          # Parse user input or build all
          INPUT_COMPONENTS="${{ github.event.inputs.components || 'webclient,desktop,android,backend' }}"
          IFS=',' read -ra COMPONENTS <<< "$INPUT_COMPONENTS"
          
          # Default to building everything on tags/main branch
          if [[ $GITHUB_REF == refs/tags/* ]] || [[ $GITHUB_REF == refs/heads/main ]] || [[ $GITHUB_REF == refs/heads/master ]]; then
            echo "webclient=true" >> $GITHUB_OUTPUT
            echo "desktop=true" >> $GITHUB_OUTPUT
            echo "android=true" >> $GITHUB_OUTPUT
            echo "backend=true" >> $GITHUB_OUTPUT
          else
            # Build only what changed or was specified
            for component in "${COMPONENTS[@]}"; do
              component=$(echo "$component" | xargs) # trim whitespace
              if [[ "${{ steps.changes.outputs.webclient }}" == "true" ]] || [[ "$component" == "webclient" ]]; then
                echo "webclient=true" >> $GITHUB_OUTPUT
              else
                echo "webclient=false" >> $GITHUB_OUTPUT
              fi
              
              if [[ "${{ steps.changes.outputs.desktop }}" == "true" ]] || [[ "$component" == "desktop" ]]; then
                echo "desktop=true" >> $GITHUB_OUTPUT
              else
                echo "desktop=false" >> $GITHUB_OUTPUT
              fi
              
              if [[ "${{ steps.changes.outputs.android }}" == "true" ]] || [[ "$component" == "android" ]]; then
                echo "android=true" >> $GITHUB_OUTPUT
              else
                echo "android=false" >> $GITHUB_OUTPUT
              fi
              
              if [[ "${{ steps.changes.outputs.backend }}" == "true" ]] || [[ "$component" == "backend" ]]; then
                echo "backend=true" >> $GITHUB_OUTPUT
              else
                echo "backend=false" >> $GITHUB_OUTPUT
              fi
            done
          fi

  # Build Web Client
  build-webclient:
    runs-on: ubuntu-latest
    name: Build Web Client
    needs: init-submodules
    if: needs.init-submodules.outputs.should-build-webclient == 'true'
    outputs:
      client-sha: ${{ steps.sha.outputs.sha }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Setup Node 24
        uses: actions/setup-node@v4
        with:
          node-version: 24.x

      - name: Build client
        run: |
          cd swingmusic-webclient
          npm install
          npm run build
          cd ..

      - name: Generate client SHA
        id: sha
        run: |
          cd swingmusic-webclient/dist
          sha256sum * | sort | sha256sum | cut -d' ' -f1 > client.sha
          echo "sha=$(cat client.sha)" >> $GITHUB_OUTPUT

      - name: Upload client artifact
        uses: actions/upload-artifact@v4
        with:
          path: "swingmusic-webclient/dist/"
          compression-level: 0
          name: "webclient"

  # Build Desktop App
  build-desktop:
    runs-on: ubuntu-latest
    name: Build Desktop App
    needs: init-submodules
    if: needs.init-submodules.outputs.should-build-desktop == 'true'
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        include:
          - os: ubuntu-latest
            platform: linux
            target: x86_64-unknown-linux-gnu
          - os: windows-latest
            platform: windows
            target: x86_64-pc-windows-msvc
          - os: macos-latest
            platform: macos
            target: x86_64-apple-darwin
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install dependencies (Ubuntu)
        if: matrix.os == 'ubuntu-latest'
        run: |
          sudo apt-get update
          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf

      - name: Rust setup
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - name: Rust Cache
        uses: swatinem/rust-cache@v2
        with:
          workspaces: "swingmusic-desktop -> target"
          key: ${{ matrix.platform }}-x64

      - name: Install Tauri CLI
        run: npm install -g @tauri-apps/cli

      - name: Install desktop dependencies
        run: |
          cd swingmusic-desktop
          npm install

      - name: Build the app
        run: |
          cd swingmusic-desktop
          npm run tauri build -- --target ${{ matrix.target }}

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: swingmusic-desktop-${{ matrix.platform }}-x64
          path: |
            swingmusic-desktop/target/${{ matrix.target }}/release/bundle/
            !swingmusic-desktop/target/${{ matrix.target }}/release/bundle/.*/
          retention-days: 30

  # Build Android App
  build-android:
    runs-on: ubuntu-latest
    name: Build Android App
    needs: init-submodules
    if: needs.init-submodules.outputs.should-build-android == 'true'
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'

      - name: Setup Android SDK
        uses: android-actions/setup-android@v3

      - name: Grant execute permission for gradlew
        run: |
          cd swingmusic-android
          chmod +x gradlew

      - name: Build Android App
        run: |
          cd swingmusic-android
          ./gradlew assembleRelease

      - name: Upload Android artifacts
        uses: actions/upload-artifact@v4
        with:
          name: swingmusic-android
          path: swingmusic-android/app/build/outputs/apk/release/*.apk
          retention-days: 30

  # Build Backend (Python)
  build-backend:
    runs-on: ubuntu-latest
    name: Build Backend
    needs: [init-submodules, build-webclient]
    if: needs.init-submodules.outputs.should-build-backend == 'true'
    outputs:
      version: ${{ steps.version.outputs.version }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: recursive

      - name: Download webclient artifact
        if: needs.init-submodules.outputs.should-build-webclient == 'true'
        uses: actions/download-artifact@v4
        with:
          name: webclient
          path: swingmusic-webclient/dist

      - name: Compress client and copy to src/swingmusic/client.zip
        if: needs.init-submodules.outputs.should-build-webclient == 'true'
        run: |
          cd swingmusic-webclient/dist
          zip -r client.zip .
          cd ../..
          cp swingmusic-webclient/dist/client.zip src/swingmusic/client.zip

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Get version
        id: version
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/v}
          else
            VERSION=$(python -c "import sys; sys.path.insert(0, 'src'); from swingmusic import __version__; print(__version__)")
            VERSION="$VERSION-${{ github.run_number }}"
          fi
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Build wheels
        run: pip wheel . -w wheelhouse --no-deps

      - name: Upload wheels
        uses: actions/upload-artifact@v4
        with:
          path: ./wheelhouse/*.whl
          compression-level: 0
          name: "backend-wheels"

  # Build Docker Image (includes backend + webclient)
  build-docker:
    runs-on: ubuntu-latest
    name: Build Docker Image
    needs: [init-submodules, build-webclient, build-backend]
    if: needs.init-submodules.outputs.should-build-backend == 'true'
    permissions:
      contents: read
      packages: write
    outputs:
      image: ${{ steps.meta.outputs.tags }}
      digest: ${{ steps.build.outputs.digest }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Download webclient artifact
        if: needs.init-submodules.outputs.should-build-webclient == 'true'
        uses: actions/download-artifact@v4
        with:
          name: webclient
          path: swingmusic-webclient/dist

      - name: Download backend wheels
        uses: actions/download-artifact@v4
        with:
          name: backend-wheels
          path: wheels
          merge-multiple: true

      - name: Compress client and copy to src/swingmusic/client.zip
        if: needs.init-submodules.outputs.should-build-webclient == 'true'
        run: |
          cd swingmusic-webclient/dist
          zip -r client.zip .
          cd ../..
          cp swingmusic-webclient/dist/client.zip src/swingmusic/client.zip

      - name: Create version.txt
        run: echo "${{ needs.build-backend.outputs.version }}" > version.txt

      - name: Log in to Container Registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch,suffix=-${{ github.run_number }}
            type=ref,event=pr,suffix=-pr-${{ github.event.number }}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            app_version=${{ needs.build-backend.outputs.version }}
            client_sha=${{ needs.build-webclient.outputs.client-sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # Create Release
  create-release:
    runs-on: ubuntu-latest
    name: Create Release
    needs: [init-submodules, build-webclient, build-desktop, build-android, build-backend, build-docker]
    if: |
      startsWith(github.ref, 'refs/tags/') || 
      github.event.inputs.force_release == 'true'
    permissions:
      contents: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Download all artifacts
        uses: actions/download-artifact@v4

      - name: Create release
        uses: softprops/action-gh-release@v1
        with:
          name: Release ${{ needs.build-backend.outputs.version }}
          tag_name: v${{ needs.build-backend.outputs.version }}
          body: |
            ## Release ${{ needs.build-backend.outputs.version }}
            
            ### Docker Image
            - `${{ needs.build-docker.outputs.image }}`
            
            ### Components
            - **Web Client**: Built and included in Docker image
            - **Desktop Apps**: Available in artifacts
            - **Android App**: Available in artifacts  
            - **Backend**: Python wheels available
            
            ### Changes
            - View full changelog in [CHANGELOG.md](CHANGELOG.md)
            
            ### Installation
            #### Docker (Recommended)
            ```bash
            docker pull ${{ needs.build-docker.outputs.image }}
            docker run -p 1979:1979 ${{ needs.build-docker.outputs.image }}
            ```
            
            #### Desktop
            Download the appropriate artifact for your platform:
            - Linux: swingmusic-desktop-linux-x64
            - Windows: swingmusic-desktop-windows-x64  
            - macOS: swingmusic-desktop-macos-x64
            
            #### Android
            Download the APK from the swingmusic-android artifact.
          files: |
            backend-wheels/*
            webclient/*
            swingmusic-desktop-*/
            swingmusic-android/*
          draft: false
          prerelease: ${{ contains(needs.build-backend.outputs.version, '-') }}
          generate_release_notes: true

  # Summary
  build-summary:
    runs-on: ubuntu-latest
    name: Build Summary
    needs: [init-submodules, build-webclient, build-desktop, build-android, build-backend, build-docker]
    if: always()
    steps:
      - name: Build Summary
        run: |
          echo "## Build Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| Component | Status | Result |" >> $GITHUB_STEP_SUMMARY
          echo "|-----------|--------|--------|" >> $GITHUB_STEP_SUMMARY
          echo "| Web Client | ${{ needs.build-webclient.result || 'skipped' }} | ${{ contains(needs.build-webclient.result, 'failure') && '❌ Failed' || contains(needs.build-webclient.result, 'success') && '✅ Success' || '⏭️ Skipped' }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Desktop | ${{ needs.build-desktop.result || 'skipped' }} | ${{ contains(needs.build-desktop.result, 'failure') && '❌ Failed' || contains(needs.build-desktop.result, 'success') && '✅ Success' || '⏭️ Skipped' }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Android | ${{ needs.build-android.result || 'skipped' }} | ${{ contains(needs.build-android.result, 'failure') && '❌ Failed' || contains(needs.build-android.result, 'success') && '✅ Success' || '⏭️ Skipped' }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Backend | ${{ needs.build-backend.result || 'skipped' }} | ${{ contains(needs.build-backend.result, 'failure') && '❌ Failed' || contains(needs.build-backend.result, 'success') && '✅ Success' || '⏭️ Skipped' }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Docker | ${{ needs.build-docker.result || 'skipped' }} | ${{ contains(needs.build-docker.result, 'failure') && '❌ Failed' || contains(needs.build-docker.result, 'success') && '✅ Success' || '⏭️ Skipped' }} |" >> $GITHUB_STEP_SUMMARY